Let's Test Your Knowledge
Which of the following BEST defines a star?
A. A large, glowing ball of gas held together by gravity and powered by nuclear fusion.
B. A celestial body that orbits a planet and reflects light from the sun.
C. A cloud of gas and dust in space where stars are born.
D. A rocky or icy object that orbits a star.
A. A large, glowing ball of gas held together by gravity and powered by nuclear fusion.
What is a constellation?
A. A single, bright star
B. A group of stars that appear to form a pattern
C. A cloud of gas and dust where stars are born
D. A type of galaxy
B. A group of stars that appear to form a pattern
What is the difference between astronomy and astrology?
A. Astronomy is a science, while astrology is a pseudoscience
B. Astronomy studies celestial objects, while astrology studies human behavior
C. Astronomy uses telescopes, while astrology uses horoscope
D. All of the above
All of the above
What is the brightest star in the night sky as seen from Earth (excluding the Sun)?
A. Polaris
B. Sirius
C. Betelgeuse
D. Vega
B. Sirius
What is the apparent magnitude of a star?
A. Its actual brightness
B. Its brightness as seen from Earth
C. Its distance from Earth
D. Its temperature
B. Its brightness as seen from Earth